Go to Canalave City, where you will meet your rival and Prof Rowan and his assistant (in the library). Then there will be a massive earthquake and, when you go outside, a sailor will run up to you and say, "YO, OLD DUDE AND KIDS! SOMETHING BIG HAPPENED AT LAKE VALOR." Prof Rowan tells you to go to Lake Valor, and when you get there, there is no water, and a ton of Team Galactic Grunts. Go to the cave in the middle where you'll have to battle Commander Saturn. Then pretty much go along with the plot from there.
you have to go to the place with the binoculars and talk to him then go to his gym and talk to the guy with the red hair then he will let you in
You have to go to the Lighthouse in Sunyshore City and he will be there. Talk to him and he will go back to the gym. When you get to the gym, Flint will still be standing there. Talk to him and he will move.
Go in to every Pokemon gym and get beaten at least 10 times againgst the gym leaders.
go to the 5 gym
The fifth gym leader in Pokemon platinum is crasher wake but you get the fourth badge.
In Pokemon Diamond\Pearl, you go to the Veilstone City Gym. In Pokemon Platinum, you go to the Hearthome City Gym.
go catch Giratina and then go to the Sunshore City gym and fight the gym leader
Go to pastoria and battle the gym leader wake
The fourth gym in platinum is the veilstone gym
You go on to defeat the eight gym leader.
to veilstone city
in snowpoint city
Go beat the fourth
Gym Leader Roark is available when you go East from Jubilife City.
beat the hearthome gym then the veilstone and then go to pastoria city and battle wake in that gym
you have to go to the place with the binoculars and talk to him then go to his gym and talk to the guy with the red hair then he will let you in
Go to the veilstone gym and beat maylene.